1 files changed, 9 insertions, 6 deletions

diff --git a/arch/i386/kernel/vm86.c b/arch/i386/kernel/vm86.c
index d16cd3738a4..d3b4c540eb6 100644
--- a/arch/i386/kernel/vm86.c
+++ b/arch/i386/kernel/vm86.c
@@ -717,12 +717,12 @@ static irqreturn_t irq_handler(int intno, void *dev_id, struct pt_regs * regs)
         irqbits |= irq_bit;
         if (vm86_irqs[intno].sig)
                 send_sig(vm86_irqs[intno].sig, vm86_irqs[intno].tsk, 1);
-        spin_unlock_irqrestore(&irqbits_lock, flags);
         /*
          * IRQ will be re-enabled when user asks for the irq (whether
          * polling or as a result of the signal)
          */
-        disable_irq(intno);
+        disable_irq_nosync(intno);
+        spin_unlock_irqrestore(&irqbits_lock, flags);
         return IRQ_HANDLED;
 
 out:
@@ -754,17 +754,20 @@ static inline int get_and_reset_irq(int irqnumber)
 {
         int bit;
         unsigned long flags;
+        int ret = 0;
         
         if (invalid_vm86_irq(irqnumber)) return 0;
         if (vm86_irqs[irqnumber].tsk != current) return 0;
         spin_lock_irqsave(&irqbits_lock, flags);        
         bit = irqbits & (1 << irqnumber);
         irqbits &= ~bit;
+        if (bit) {
+                enable_irq(irqnumber);
+                ret = 1;
+        }
+
         spin_unlock_irqrestore(&irqbits_lock, flags);   
-        if (!bit)
-                return 0;
-        enable_irq(irqnumber);
-        return 1;
+        return ret;
 }